It uses countercurrent air flow cooling down high temperature and high humidity pellets. Inlet adopts airlock which avoidsoutside air disturbing. Octangle cooling bin,no air flow dead angle.Vibration unloading, no residue.So cleaning is unnecessary when changing products. Cooled products' temperature only 3-5 higher than room temperature. ModelNKSL-3NKSL-5NKSL-10PowerKW1.151.151.9ProctivityT/H3510